I mean, the math on this is hysterical with how everything is supposed to resolve.
IIRC the -1 hits at the start of turn, no matter what. So, we get -2 stability bringing us to -3, and then we roll for the stability addition. (0, 1, 2, 3). Which then yields our final stability per action of -1, 0, 1, 2. Even better, because this is a secondary action we aren't rolling twice and taking best result. So, we basically have 50/50 odds of doing nothing or making shit worse. Let's compound that by deliberately fucking with ourselves at the start of turn, which is going to cause a whole mess of fun.
I'm already salty. We were provided with a perfectly serviceable stability button and then we proceeded to pick the shit option.